# app/modules/hosting/routes/pages/public.py
"""
Hosting Public Page Routes.

POC site preview via signed URL redirect to the storefront.
The StorefrontAccessMiddleware validates the preview token and
allows rendering without an active subscription.
"""

from fastapi import APIRouter, Depends, Path, Query
from fastapi.responses import HTMLResponse, RedirectResponse
from sqlalchemy.orm import Session

from app.core.database import get_db
from app.core.preview_token import create_preview_token

router = APIRouter()


@router.get(
    "/hosting/sites/{site_id}/preview",
    include_in_schema=False,
)
async def poc_site_viewer(
    site_id: int = Path(..., description="Hosted Site ID"),
    page: str = Query("homepage", description="Page slug to preview"),
    db: Session = Depends(get_db),
):
    """Redirect to storefront with signed preview token.

    Generates a time-limited JWT and redirects to the store's
    storefront URL. The StorefrontAccessMiddleware validates the
    token and bypasses the subscription check.
    """
    from app.modules.hosting.models import HostedSite, HostedSiteStatus

    site = db.query(HostedSite).filter(HostedSite.id == site_id).first()

    if not site or site.status not in (
        HostedSiteStatus.POC_READY,
        HostedSiteStatus.PROPOSAL_SENT,
        HostedSiteStatus.ACCEPTED,
    ):
        return HTMLResponse(content="<h1>Site not available for preview</h1>", status_code=404)

    store = site.store
    if not store:
        return HTMLResponse(content="<h1>Store not found</h1>", status_code=404)

    # Generate signed preview token — use subdomain for URL routing
    subdomain = store.subdomain or store.store_code
    token = create_preview_token(store.id, subdomain, site.id)

    # Get platform code for dev-mode URL prefix
    from app.core.config import settings
    from app.modules.tenancy.models import StorePlatform

    store_platform = (
        db.query(StorePlatform)
        .filter(StorePlatform.store_id == store.id)
        .first()
    )

    # In dev mode, storefront needs /platforms/{code}/ prefix
    if settings.debug and store_platform and store_platform.platform:
        platform_code = store_platform.platform.code
        base_url = f"/platforms/{platform_code}/storefront/{subdomain}"
    else:
        base_url = f"/storefront/{subdomain}"

    # Append page slug — storefront needs /{slug} (root has no catch-all)
    base_url += f"/{page}"

    return RedirectResponse(f"{base_url}?_preview={token}", status_code=302)